Phenotypical appearance and histopathological examinations of the affected Limousin calf.

(A) Photo of the calf at day 1 of age with overall sparse fur. (B-C) Photos of the calf aged six months with overall sparse fur and bald areas around muzzle and eyes. (D-E) Histopathological images of haired area of the affected Calf’s forehead with dilated apocrine glands (*), sebaceous glands (+) and hair follicles (~) after HE staining. (F-G) Histopathological images of bald areas of the forehead showing severe irregular acanthosis (#), hyperkeratosis (O) and lack of any glandular appendices.